Guys, have a read of this it may help.
http://www.unep.org/chemicalsandwas.../Retort_guide_Oct2014_lowQ_version1.0_Eng.pdf
This gives some insight into retorts
http://www.unep.org/chemicalsandwas.../Retort_guide_Oct2014_lowQ_version1.0_Eng.pdf
This gives some insight into retorts